Crop management approaches, specifically tillage and planting patterns, influence crop productivity in the arid and semi-arid areas. A field experiment was carried out to assess the influence of crop establishment methods under different tillage systems on seed cotton (Gossypium hirsutum L.) yield (SCY), irrigation water productivity (IWP), and yield attributes of irrigated cotton under the ecological conditions of the south of Iran during 2017 and 2018. The experimental design was a randomized complete block with split-plot arrangement in three replicates. The planting patterns were cotton transplanting using a semi-automatic transplanter (CTr), and a cotton direct seeding (CDs) as the main plots. The subplots consisted of four tillage systems: chisel plow plus one disk harrow pass (Til.1), chisel plow plus one power harrow pass (Til.2), stubble cultivator plus one disk harrow pass (Til.3), and moldboard plow plus two disk harrow pass (Til.4). On a two-year average, CTr led to a significant reduction (15.4 %) in the amount of applied water for irrigation as compared to CDs. Cotton grown in CTr produced significantly more total number of bolls and larger boll size compared to those grown by the direct-seeded method in both years (46.7 and 8.5 %, respectively). The maximum seed cotton yield (SCY) and irrigation water productivity (IWP) were observed from the CTr × Til.1 and CTr × Til.3, whereas the minimum yield and irrigation water productivity occurred in the CDs × Til.4 in average of two years. Results of this study suggested that application of CTr in combination with Til.1 could give an optimum seed cotton yield and water productivity compared to individual use of conservation tillage (Til.1 and Til.3) in cotton-cultivated regions of the southern part of Iran and other areas with the similar ecological conditions.

作物管理方法，特别是耕作和种植模式，会影响干旱和半干旱地区的作物生产力。进行田间试验，评估不同耕作制度下作物定植方法对籽棉（Gossypium hirsutum）的影响。L.) 2017 年和 2018 年伊朗南部生态条件下灌溉棉花的产量 (SCY)、灌溉水生产力 (IWP) 和产量属性。复制。种植模式以使用半自动移栽机（CTr）和棉花直播（CDs）为主要地块的棉花移栽。子地块由四种耕作系统组成：凿犁加一盘耙（Til.1）、凿犁加一犁耙（Til.2）、茬中耕机加一盘耙（Til.3）和犁板犁加上两个圆盘耙通（Til.4）。以两年平均值计算，与 CD 相比，CTr 导致灌溉用水量显着减少 (15.4%)。与直接播种法种植的棉花相比，在 CTr 中种植的棉花在这两年中产生了明显更多的棉铃总数和更大的棉铃尺寸（分别为 46.7% 和 8.5%）。CTr×Til.1和CTr×Til.3的籽棉产量（SCY）和灌溉水生产力（IWP）最大，而CDs×Til.4的平均产量和灌溉水生产力最低两年。本研究结果表明，在南部棉花种植区，与单独使用保护性耕作（Til.1 和 Til.3）相比，将 CTr 与 Til.1 结合使用可以获得最佳的籽棉产量和水分生产力伊朗等生态条件相似的地区。